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Core i5-1235U vs i9-11900KB


Description
The i5-1235U is based on Alder Lake architecture while the i9-11900KB is based on Tiger Lake.

Using the multithread performance as a reference, the i5-1235U gets a score of 297.5 k points while the i9-11900KB gets 537.2 k points.

Summarizing, the i9-11900KB is 1.8 times faster than the i5-1235U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a4
806d1
Core
Alder Lake-U
Tiger Lake-H
Architecture
Base frecuency
3.3 GHz
3.3 GHz
Boost frecuency
4.4 GHz
4.9 GHz
Socket
BGA 1700
BGA 1787
Cores/Threads
10/12
8/16
TDP
15 W
65 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
8x32+8x48 kB
Cache L2
1x1280+4x2048 kB
8x1280 kB
Cache L3
12288 kB
24576 kB
Date
April 2022
July 2021
Mean monothread perf.
81.64k points
63.79k points
Mean multithread perf.
297.46k points
537.18k points

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i5-1235U
i9-11900KB
Test#1 (Integers)
36.73k
24.09k (x0.66)
Test#2 (FP)
22.09k
19.54k (x0.88)
Test#3 (Generic, ZIP)
11.24k
8.48k (x0.75)
Test#1 (Memory)
11.58k
11.68k (x1.01)
TOTAL
81.64k
63.79k (x0.78)

Multithread

i5-1235U

i9-11900KB
Test#1 (Integers)
130.18k
220.79k (x1.7)
Test#2 (FP)
110.21k
225.98k (x2.05)
Test#3 (Generic, ZIP)
50.76k
79.1k (x1.56)
Test#1 (Memory)
6.31k
11.32k (x1.79)
TOTAL
297.46k
537.18k (x1.81)

Performance/W
i5-1235U
i9-11900KB
Test#1 (Integers)
8679 points/W
3397 points/W
Test#2 (FP)
7348 points/W
3477 points/W
Test#3 (Generic, ZIP)
3384 points/W
1217 points/W
Test#1 (Memory)
421 points/W
174 points/W
TOTAL
19831 points/W
8264 points/W

Performance/GHz
i5-1235U
i9-11900KB
Test#1 (Integers)
8349 points/GHz
4917 points/GHz
Test#2 (FP)
5020 points/GHz
3988 points/GHz
Test#3 (Generic, ZIP)
2555 points/GHz
1730 points/GHz
Test#1 (Memory)
2631 points/GHz
2384 points/GHz
TOTAL
18555 points/GHz
13018 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4